Cinder-runner for blast-furnaces.



F. H. N. GERWlG. BINDER RUNNER FORBLAST FURNACES.

APPLICA'HON FILED JULY 10.1918.

Patented Dec. 10, 1918.

, of the cast-house FREDERICK N. GERWIG, OF BRADDOCK, PENNSYLVANIA.

CINDER-BUNNER FOR BLAST-FURNACES.

Application filed July 10, 1918,

To all whom it may concern y Be it known that I, FREDERICK H. N. GER- WIG, a citizen of the United States, and resident of Braddock, in the county of Allegheny and State of Pennsylvania, have invented certain new and useful Improvements in Cinder-Runners for Blast-Furnaces, of

which the following is a specification.

' My invention relates to the construction of e runners or troughs used in conducting molten cinder or slag from the cinder notch of blast furnaces and from the cinder overflow outlet of the iron runner of blast furnaces to the cinder ladle cars used in transporting the cinder in a molten condition.

In operating blast furnaces it is desirable and generally necessary to clean out the cinder runners after each flushing operation by removing the film or layer of cinder which chills and solidifies on the sides or walls of the cinder runner during each under tapping or flushing operation. It also is a frequent'occurrence for a sudden rush of cinder from the furnace to overflow the cinder runner and result in large quantities of molten cinder being spilled over the walls tracks on which the cinder ladle cars are standing. The result is to cause delays in the removalof the cinder cars and added expense for the labor used in removing the spilled cinder from the tracks, movement of the cinder cars sometimes being prevented until after the spilled cinder is removed from the car tracks.

In removing the. layer of chilled cinder from the cinder runners or troughs, large amounts of broken cinder fall to the de pressed car tracks, which is also a cause of delay and considerable expense in removing the spilled cinder from the tracks.

One object of my invention is to provide a cinder runner for blast furnaces having novel means whereby the spilling of cinder on the cinder car tracks, heretofore caused in cleaning out accun'nilations of chilled cinder in the cinder ten cinder overflowing the cinder runner and falling over the walls of the east house, is overcome and prevented and whereby the delays and expense occasioned by the removal of spilled cinder from the car tracks are avoided and made unnecessary.

The invention consists in the provision of upwardly projecting extension walls or side Specification of Letters Patent.

onto the depressed cinder notch, extends from runner or by rushes of mol- Serial no. 244,227.

boards on the cinder runners-0r troughs, adjacent to the overhanging spouts or dis charge ends of the spouts and application of toe angles extending between the sideboards of contiguous spouts, so as to cause overflows of molten cinder or pieces of the chilled cinder handled in c1 der runners to be discharged into the ladle cars, and to prevent the cinder from flowing orfalling to the car tracks below the cinder runner spouts.

eferring now to the drawings, forming part of this specification, Figure l is a diagrammatic plan showing the cinder runners or troughs of a blast furnace constructed and arranged and adapted for use in accordance with my invention.

*ig. 2 is asectional elevation showing part of the apparatus of Fig. 1, the section being taken 'on the line II-II of Fig. 1.

Fig. 3 is a sectional elevation similar to that of Fig. showing the application of the toe angles forming part of my invention, the section being taken on the line III-HI of Fig. 1.

Fig. 4 is a sectional elevation on the line IV-IV of Fig. 1.

Fig.5 is a sectional end elevation, similar to Fig. showing a modification in the construction and arrangement of the side boards or extensions forming part of my improved apparatus.

in the accompanying drawings the numeral designates ablast furnace having cast-house walls 3 at the sides of the cinder car tracks, and 4 is the ladle of molten. cinder (rs which are positioned or spot-ted. on d csscd railway tracks so as to be located or spouts of the branches runner or trough.

The cinder trough or runner 5, which slopes downwardly away from the cinder the blast furnace cinder notch to the runner t3, and the cinder runner (3 extends to one of the cinder ladle cars 4 from the iron, runner or trough 7, which is used in conducting inoiten iron from the iron notch or tapping hole of the blast furnace to the iron ladle cars (not shown). The cinder runner 6 is provided with discharge spouts 8, 9, 10, 11, and 12, as is clearly shown in Fig. 11

The overhanging ends of the spouts 9, 1O, 11, and 12- are provided with side walls or on the cinder Patented Dec. 10, 1918.

caning the cinunder the overhanging discharge ends in the walls 3 of the cast-house.

charge into the ladies the spouts side-boards 13 which project upwardly and form a novel feature of this invention. Preferably the side-boards13 will be rigidly secured in place by means of bolts fastened When found necessary or desirable, the extensions or side-boards 13 will flare upwardly and outwardly, as shown in Fig. 5. The extensions or side-boards 13 also may be separate from instead of being formed integrally on the'spouts of the cinder runner. In other cases the 'side boards may be formed integrally and provided with the bolt holes for the fastening bolts used in securing the cinder runner spouts in place in position to disl-adles 4 of the cinder cars. Extending between the adjoining sideboards 13 of the spouts 9,10, 11 and 12 are toe angles 14 which have one leg 15 project ing upwardly above the level of the wall 3 (see Fig. 3) so as to form a side-board connecting the side-board 13 of adjacent spouts.

The toe angles 14 will be bolted or otherwise fastened on the top of the'wall 3, as will be readily understood.

In handling cinder with troughs or runners embodying my invention, the molten cinder is conveyed by the runners to the 4 of the cinder cars in the usual manner. Should a sudden (such as would overflow the runner and fall onto the depressed tracks with cinder runners of the usual construction,) the excess flow of molten cinder to the tracks-is pre vented from falling to the car tracks by the side-boards 13 and toe angles 1%, and is retarded and caused to flow over the end of into the ladles 4.

When cleaning the cinder runners at'ter each flushing operation, the layer of solidified cinder in the runners is broken up into pieces and the broken pieces of solidified .cinder are swept or shoveled toward the spouts or discharge end oi the branch runners. When a point adjacent to the spouts 1S reached in the cleaning operation, the

workmen continue the sweeping or shoveling, as heretofore, but instead of considerable quantities of the broken cinder 'falling rush of cinder occur,

side-boards La-and toe angles 14- removing acc umulatio us of spilled cinder from the cinder car tracks.

. various modifi and arrangement of c1 cations in nder runners embodythe construction ing my invention may be made without departing from the invention as appended claims.

defined in the 1. A blast furnace cinder runner comprison the runner, inclined extensions on the opp of sand spout, said extensions in combination, a main runner,

and upwardly a spout and outwardly osite side walls projecting above the plane of the upper edges of the' sides of the main runner.-

2. A blast furnace sing, in combination,

on the runner, upwardly clined extensions cindera main runner, a spout runner comprisand outwardly 111- on the opposite side walls of said spout, said extensions projecting above the plane of the sides of the'i'nain runner, and toe angles on opposite sides 3. Ablast turn ing, in combination,

ner having a extensions on the opposi spout, saidext and outwardly edges of upper edges of the said spout. ace cinder runner comprisa xnainrunner, said runspout and, integrally formed prising, in combination,

runner having asp extensions on the opposi spout, said extensions te side walls of said ensions projecting upwardly above the plane of the upper the sides of the main. runner.

blast furnace cinder runner coma main runner, sa1

te side walls ofsaid pro] oting upwardly and outwardly above the planeof the upper edges of the sides o toe angles on oppos1 5. A blast prising,

ing a plurality of hi aspout on the end 0 upwardly and on top of the op said extensi spouts,

f the main runner, an to sides of said spout.

furnace cinder runner comin combination,

'anch troughs thereon, f each branch trough,

a main runner havoutwardly inclined extensions posite side walls of ons projecting materially said above the plane of the upper edges of the sides of the branch troug extending between and one of contiguous spouts.

jacent extensi s, and toe angles connecting the ad- 6. A blast furnace cinder runner comprising, in

plurality of branc t on the end of each hanging spou trough, upwa extensions on of said spouts, terially above angles extendi adjacent exten rdly and top said combination, a main runner having a h troughs thereon, an overbranch outwardly inclined of the opposite side walls extensions projecting mathe plane of the upper edges of the sides of said branch troughs, and toe ng between and sions of contiguous spouts.

f, L have hereunto,

In testimony whereo signed my name.

FRE

DERICK connecting the H. N. GERWIG.

out and integrally for-med 

